Home › Jaguar › 2017 › F-Pace First Edition › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Suspension Control Module (ISCM) - F-Pace › Diagnostic Trouble Code Index DTC: Suspension Control Module (ISCM) › Description And Operation › Suspension Control Module (ISCM) › DTC C1B18-2F: Module Power Supplies - Signal erratic › Possible Causes